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SN3 - Swindon east suburbs

Stratton St Margaret and South Marston

Last updated Jul 2026

Area Overview

The postcode district SN3 covers Swindon east suburbs, including Stratton St Margaret and South Marston, and is located in the Swindon area.

It is a residential district comprising 26,084 addresses, of which 4,991 are flats and 21,093 are houses.

Ave. Sale Price
£265,824
10 Year change
up 24.6%
Ave. Rental Price
£1,413pcm
10 Year change
up 45.1%
Ave. £ per ft²
£296/ft²
Ave. Gross Yield
6.4%/year/yr
Streets in SN3

Streets in SN3

House prices in SN3 have fallen, with Blakesley Close holding up best at 0.1% down over the last 12 months. It also leads the lettings market, with rents up 6.0% over the year.

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sales

Sales Prices

The average house price in SN3 is £265,824. Sale value has decreased in the last 12 months by 2.7%.

Property sale values range from £50,117 for a leasehold flat, with 1 bedroom split across 149 square feet of gross internal area to £1,373,936 for a freehold house, with 5 bedrooms split across 4,984 square feet of gross internal area and has garden.

Average £/ft2 for properties in SN3 is £296/ft2.

PeriodYear on YearAverage Price
June 2026-2.7%£274,832
June 20252.6%£282,583
June 2024-0.6%£275,414
June 20231.3%£277,086
June 202211.9%£273,542
June 20214.4%£244,493
June 20201.1%£234,292
June 2019-1.3%£231,820
June 20180.5%£234,874
June 20175.9%£233,614
June 20169.4%£220,497
June 201511.1%£201,461
June 20148.6%£181,375
June 20131.4%£167,071
June 2012-0.5%£164,760
June 2011-0.3%£165,540
June 20108.3%£165,969
June 2009-13.6%£153,319
June 2008-2.6%£177,495
June 20070%£182,193
rental

Rental Prices

The average rental value in SN3 is £1,413pcm. Rental value has increased in the last 12 months by 3.2%.

Property rental values range from £345 for a leasehold flat, with 1 bedroom split across 149 square feet of gross internal area to £5,748 for a freehold house, with 5 bedrooms split across 4,984 square feet of gross internal area and has garden.

Properties achieve a rental yield of between 4.8% and 8.6%.

PeriodYear on YearAverage Price
June 20263.2%£1,413pcm
June 20253.4%£1,370pcm
June 20247.5%£1,325pcm
June 20237%£1,233pcm
June 202210.9%£1,153pcm
June 20214.5%£1,040pcm
June 20201.3%£996pcm
June 20191%£983pcm
June 2018-1.3%£973pcm
June 20171.2%£986pcm
June 20166%£974pcm
June 20159.2%£919pcm
June 20144%£842pcm
June 20132.6%£810pcm
June 20121.5%£789pcm
June 20112%£778pcm
June 20102.7%£762pcm
June 2009-11.2%£742pcm
June 20083.2%£836pcm
June 20070%£810pcm
Most recently sold properties

Most Recently Sold Properties

The latest HM Land Registry sales for SN3. Data is published monthly and sales can take weeks to register, so the newest may not appear yet.

Source: HM Land Registry ()
Energy Efficiency background

Energy Efficiency of buildings within SN3

The average internal area for a residential property in SN3 is 883 ft2 with properties ranging from 140 to 7,815 ft2 with the most common Energy Performance Certificate (EPC) rating being C.
The diagram shows the distribution of EPCs within SN3.
  • A (442)
  • E (1k)
  • B (3k)
  • F (139)
  • C (6k)
  • G (26)
  • D (6k)
  • No EPC (10k)
Postcode districts

Postcode districts near to SN3